Net rack structure flat plate supporting seat capable of friction and energy consumption

Abstract

The invention relates to a net rack structure flat plate supporting seat capable of friction and energy consumption, which includes a pre-embedded steel plate, a large friction plate, a long hole-opened steel bottom plate, a small friction plate, a steel gasket, a belleville spring, nuts, an anchor bolt, a ribbed plate, and a supporting seat ball. The ribbed plate and the supporting seat ball arearranged on the upper part of the long hole-opened steel bottom plate, the pre-embedded steel plate and the anchor bolt are pre-embedded in a concrete structure II, and the anchor bolt penetrates through the pre-embedded steel plate, the large friction plate, the long hole-opened steel bottom plate, the small friction plate, the steel gasket and the butterfly spring and is fixed by the nus; and the net rack structure flat plate supporting seat capable of friction and energy consumption has good energy consuming performance and deformation ability, and damage to the anchor bolt is effectively avoided. The net rack structure flat plate supporting seat is simple in structure, easy to construct, clear in force transmission path and low in cost, net rack structure performance under the action of an earthquake is greatly improved, and the net rack structure flat plate supporting seat has high engineering practical application value.

Description

technical field [0001] The invention relates to a hybrid structure, in particular to a grid structure flat support capable of frictional energy dissipation. Background technique [0002] The grid structure is often used in large-span space structures such as museums and hangars. Its overall structure has good seismic performance and is often used as a post-disaster refuge. It has been found in many earthquakes at home and abroad in recent years that the flat support used to connect the upper steel grid and the concrete structure is often damaged, especially the tensile, bending and shear composite force failure of the anchor bolt reinforcement is more common. The main phenomenon of this failure mode is that the anchor bolts of the support are pulled off, the fastening nuts on the upper part of the anchor bolts fall off, the upper network frame and the lower concrete cannot form an effective connection, and the joint force causes the upper network frame to collapse as a whole...

AI Technical Summary

Problems solved by technology

The main phenomenon of this failure mode is that the support anchor bolts are pulled off, the fastening nuts on the upper part of the anchor bolts fall off, and the upper network frame and the lower concrete cannot form an effective connection, and the joint force causes the upper network frame to collapse as a whole. This poses a great threat to the property and personal safety in the building, and seriously affects the continuous use performance of the grid structure.

The root cause of this failure mode is that the anchor bolts of the support are subjected to the pulling, bending, and shearing actions transmitted from the steel floor during the earthquake, which makes the anchor bolts quickly yield or even be pulled off, causing the upper grid steel grid to lose its side. To support

Images